Tam sim no qhov xwm txheej thiab kev loj hlob ntawm cov kabmob steel

Bearings yog dav siv nyob rau hauv mining machinery, precision tshuab cuab yeej, metallurgical cov cuab yeej, cov khoom hnyav thiab high-end tsheb thiab lwm yam khoom siv loj, cua zog tsim, high-speed tsheb ciav hlau mos txwv tsheb ciav hlau thiab aerospace thiab lwm yam industries.Bearings ua nyob rau hauv Suav teb yog Feem ntau cov kabmob qis-kawg thiab cov kabmob me me thiab nruab nrab, uas qhia cov kabmob qis-kawg thiab high-end tsis muaj.Piv rau txawv teb chaws, muaj qhov sib txawv loj hauv high-end bearings thiab loj bearings.

Tuam Tshoj high-ceev railway neeg nrog caij tsheb tshwj xeeb txuam wheelset bearings txhua yam yuav tsum tau imported los ntawm txawv teb chaws.In lub tseem ceeb bearings siv nyob rau hauv aerospace, high-speed railway, high-end tsheb thiab lwm yam kev lag luam teb, muaj ib tug loj sib txawv ntawm Suav bearings thiab Cov neeg siab tshaj nyob rau hauv cov nqe lus ntawm kev pab cuam lub neej, kev cia siab, Dn tus nqi thiab cov kabmob muaj peev xwm.Piv txwv li, lub neej kev pab cuam ntawm lub tsheb txawv teb chaws kis tau tus mob yog tsawg kawg yog 500,000 kilometers, thaum lub neej kev pab cuam ntawm domestic zoo sib xws bearings yog hais txog 100,000 kilometers, thiab kev ntseeg tau thiab stability tsis zoo.

1. Aviation

Raws li lub hauv paus tseem ceeb ntawm aero-engine, lub thib ob tiam aero-engine bearing nrog thrust ratio ntawm 15-20 yog tau tsim nyob rau txawv teb chaws, uas yog npaj txhij los sib sau ua ke rau hauv lub thib tsib tiam fighter nyob ib ncig ntawm 2020.Nyob rau hauv 10 xyoo dhau los, lub Tebchaws Asmeskas tau tsim cov kabmob thib ob rau aero-engine, uas nws cov neeg sawv cev steel hom yog CSS-42L, lub zog siab corrosion resistant bearing steel nrog 500 ℃ tsis kam, thiab X30 (Cronidur30), siab nitrogen corrosion resistant bearing steel nrog. 350 ℃ tsis kam.Tuam Tshoj tab tom tsim cov kabmob thib ob rau aero-engine.

2. Tsheb

Rau tsheb hub bearings, thawj thiab thib ob tiam hub bearings (pob bearings) yog dav siv nyob rau hauv Tuam Tshoj, thaum lub thib peb tiam hub bearings tau lug siv nyob rau hauv cov teb chaws Europe.Lub ntsiab zoo ntawm lub thib peb tiam hub bearings yog kev ntseeg siab, luv payload spacing. , yooj yim installation, tsis hloov, compact qauv thiab lwm yam.Tam sim no, feem ntau mas qauv nyob rau hauv Tuam Tshoj siv xws li lub teeb yuag thiab integrated qauv hub bearings.

3. Railway dov Tshuag

Tam sim no, bearings siv nyob rau hauv Tuam Tshoj txoj kev tsheb ciav hlau hnyav-haul tsheb ciav hlau yog ua los ntawm domestic electroslag remelting G20CrNi2MoA carburized steel.Thiab txawv teb chaws muaj lub ultra siab purity ntawm bearing steel (EP) steel smelting thiab nqus degassing inclusion homogenization technology (IQ) steel, lub neej ntev. steel thev naus laus zis (TF) steel, zoo zoo, thiab kev kho cua sov thev naus laus zis, txheej txheem kev kho deg hardening thiab qib siab sealing lubrication tshuab siv rau cov kabmob ntau lawm thiab kev tsim khoom, yog li txhim khu kev pabcuam lub neej ntawm cov kabmob thiab kev ntseeg siab.Qhov zoo ntawm Suav electroslag bearing steel tsis tsuas yog qis, tab sis kuj tus nqi yog 2000-3000 yuan / tuj siab dua li ntawm lub tshuab nqus tsev degassing steel.Nyob rau hauv lub neej yav tom ntej, Tuam Tshoj yuav tsum tsim lub tshuab nqus tsev degassing bearing steel nrog ultra-siab purity, zoo zoo, homogenization thiab ruaj khov zoo los hloov cov kev siv tam sim no ntawm electroslag bearing steel.

Yav tom ntej kev tshawb fawb thiab kev loj hlob kev taw qhia ntawm Bearing steel nyob rau hauv Tuam Tshoj

Nws yog feem ntau xav txog plaub yam:

1. Kev nyab xeeb huv

Raws li lub hauv paus ntawm kev xav txog kev lag luam, kev ua kom huv ntawm cov hlau txuas ntxiv txhim kho, cov ntsiab lus ntawm cov pa oxygen thiab titanium hauv cov hlau raug txo, thiab feem ntau ntawm cov pa oxygen thiab titanium hauv cov kabmob steel yog tsawg dua 6 × 10-6 thiab 15 × 10- 6 ,ua.Cov ntsiab lus thiab qhov loj ntawm kev suav nrog hauv cov hlau raug txo, thiab kev faib khoom sib xws tau txhim kho.

2. Lub koom haum refinement thiab homogenization

Los ntawm daim ntawv thov ntawm alloying tsim thiab tswj dov thiab tswj cov txheej txheem txias, cov uniformity ntawm inclusions thiab carbides yog ntxiv txhim kho, lub reticulated thiab banded carbides raug txo thiab tshem tawm, qhov nruab nrab qhov loj thiab qhov siab tshaj particle loj yog txo, thiab qhov nruab nrab loj ntawm carbides. yog tsawg dua 1μ m.Qhov loj ntawm cov kabmob steel yog ntxiv refined los ntawm kev txhim kho cov nplej loj ntawm cov qauv matrix.

3. Txo cov ntaub so ntswg uas tsis muaj zog

Ntxiv mus, txo lub hauv paus porosity, central shrinkage kab noj hniav thiab central tivthaiv segregation nyob rau hauv bearing steel, txhim kho lub uniformity ntawm tsawg-power qauv.

4. High toughness ntawm bearing steel

Lub toughness ntawm bearing steel tau txhim kho los ntawm tshiab alloying, kub dov txheej txheem optimization thiab kev kho cua sov txheej txheem kev tshawb fawb.(China Steel Research & Development Strategy Institute)

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